✔ 最佳答案
It seems that your girlfriend may has Fibroids that is also called fibre tumor.
Fibroids can vary widely in size, from one-half inch to masses weighing up to 50 pounds, they grow from the muscular wall of the uterus and are made up of muscle and fibrous tissue. The cause of uterine fibroids is not known.
Fibroids do not occur in girls who have not had their first menstrual period, and they tend to shrink after women go through menopause. Those who will experience annoying symptoms like heavy periods and bleeding between menstrual cycles, pain during intercourse, or a sense of abdominal bloating.
The cause is often diagnosed as fibroid tumors of the uterus, and, depending on the severity of symptoms and other factors, surgery or medication might be necessary.
You better ask your girlfriend to see the doctor, health is more important.